Lensler Arasındaki Fark

arkadaşlar hediye olarak bi lens alıcam bu işlerden pek anlamam ama aynı mm değerlerinde, 3 adet birbirinden farklı fiyat var bunların arasındaki fark nedir

http://www.hepsiburada.com/liste/sigma-70-300mm-f4-56-apo-dg-macro-obejktif-274070300/productDetails.aspx?productId=bd94335&categoryId=97096&navq=fh_eds%3d%25c3%259f%26categoryid%3d97096%26fh_view_size%3d12%26fh_sort_by%3d-order_stock_attribute_pl%252c%252bmin_actual_price_pl%26sc%3d8%26fh_secondid%3dbd94335%26fh_lister_pos%3d7%26fh_location%3d%252f%252fcatalog01%252ftr_TR%252fcategories%253c%257bcatalog01_2147483606%257d%252fcategories%253c%257bcatalog01_2147483606_60000190%257d%252fcategories%253c%257bcatalog01_2147483606_60000190_60002058%257d%252fcategories%253c%257bcatalog01_2147483606_60000190_60002058_97096%257d%26fh_refview%3dlister


http://www.hepsiburada.com/liste/tamron-af-70-300mm-f4-56-di-ld-macro-12-objektif/productDetails.aspx?productId=bd98610&categoryId=97096&SKU=BD98610-CANON&navq=fh_eds%3d%25c3%259f%26categoryid%3d97096%26fh_view_size%3d12%26fh_sort_by%3d-order_stock_attribute_pl%252c%252bmin_actual_price_pl%26sc%3d8%26fh_secondid%3dbd98610%26fh_lister_pos%3d3%26fh_location%3d%252f%252fcatalog01%252ftr_TR%252fcategories%253c%257bcatalog01_2147483606%257d%252fcategories%253c%257bcatalog01_2147483606_60000190%257d%252fcategories%253c%257bcatalog01_2147483606_60000190_60002058%257d%252fcategories%253c%257bcatalog01_2147483606_60000190_60002058_97096%257d%26fh_refview%3dlister

[simage][/simage]
http://www.hepsiburada.com/liste/sigma-70-300mm-f4-56-dg-macro-objektif-271070301/productDetails.aspx?productId=bd94336&categoryId=97096&SKU=BD94336-CANON&navq=fh_eds%3d%25c3%259f%26categoryid%3d97096%26fh_view_size%3d12%26fh_sort_by%3d-order_stock_attribute_pl%252c%252bmin_actual_price_pl%26sc%3d8%26fh_secondid%3dbd94336%26fh_lister_pos%3d6%26fh_location%3d%252f%252fcatalog01%252ftr_TR%252fcategories%253c%257bcatalog01_2147483606%257d%252fcategories%253c%257bcatalog01_2147483606_60000190%257d%252fcategories%253c%257bcatalog01_2147483606_60000190_60002058%257d%252fcategories%253c%257bcatalog01_2147483606_60000190_60002058_97096%257d%26fh_refview%3dlister